Fixed bug where changing State would cause the camera to not reset if it was following an object.

World.reset now calls Camera.reset which sends the camera back to 0,0 and un-follows any object it may have been tracking.

src/core/Camera.js

@@ -330,6 +330,19 @@ Phaser.Camera.prototype = {
         this.view.width = width;
         this.view.height = height;
 
+    },
+
+    /**
+    * Resets the camera back to 0,0 and un-follows any object it may have been tracking.
+    * 
+    * @method Phaser.Camera#reset
+    */
+    reset: function () {
+
+        this.target = null;
+        this.camera.x = 0;
+        this.camera.y = 0;
+
     }
 
 };

src/core/World.js

@@ -178,8 +178,7 @@ Phaser.World.prototype.setBounds = function (x, y, width, height) {
 */
 Phaser.World.prototype.destroy = function () {
 
-    this.camera.x = 0;
-    this.camera.y = 0;
+    this.camera.reset();
 
     this.game.input.reset(true);